Primary hybrid total hip arthroplasty with a roughened femoral stem: Integrity of the stem-cement interface

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

One hundred and two consecutive cemented femoral stems were evaluated in 92 patients at an average 9-year follow-up and a minimum 5-year follow-up (range, 5-14 years). The stem used was cobalt chromium with a collar, normalization steps, and a roughened surface (Ra 40); the stem was inserted using contemporary cementing techniques. This series demonstrated a femoral component aseptic loosening rate of 2.0% and a femoral component survivorship of 97.2 ± 2.0% at 10 years. One of 2 failed stems was revised at 95 months for failure at the cement-bone interface. The second failed stem showed failure at the cement-bone interface with incomplete debonding radiographically at 65 months. The remaining femoral components did not demonstrate any evidence of debonding at the stem-cement interface. These results compare favorably with other series of cemented femoral stems, as well as with those with a polished surface.

Original languageEnglish (US)
Pages (from-to)299-307
Number of pages9
JournalJournal of Arthroplasty
Volume18
Issue number3
DOIs
StatePublished - Apr 2003

Keywords

  • Aseptic loosening
  • Debonding
  • Roughened surface
  • Survivorship
  • Total hip arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

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